The right and left finally do work as of this latest RC (yay!). The other two have a script error, but once that is fixed, they should also work. Unfortunately, I'm going to need to updated them to build 2.9 to get the fix on the DLS, and if I'm doing that, I'd like to update the detail to match the more modern tracks - probably by converting the more modern track to TANE standards (separate rail, tie, spike meshes, etc) and build the junction with those parts.
The texture replacement seems to be causing a pretty significant performance impact, so I'll likely drop that part, at least for now. My long-term hope is that N3V will upgrade the automagic junctions to support stub switches, which will automatically merge different track / ballast types.
In the short term, however, here are the Y and 3-way switches with the scripts fixed: http://carsoncarshops.com/files/stubz.cdp